Browning machine gun, caliber .50, HB, M2 (mounted in combat vehicles) - USA Basic Field Manual, FM 23-65 Antiaircraft artillery : service of the piece 3-inch antiaircraft gun - USA Coast Artillery Field Manual, FM 4-125 Motor transport / prepared under direction of the Chief of Field Artillery - USA Basic Field Manual, FM 25-10 Drill regulations for light artillery Coast artillery drill regulations Drill regulations for field artillery Regulations for the instruction and target practice of coast artillery troops Drill and Service Regulations for Field Artillery (Horse and Light) : Volume I : Parts I, II, and III Coast artillery drill regulations Drill and Service Regulations for Field Artillery (Horse and Light) : Volume II : Parts IV, V, VI, VII, and VIII. Instruments : Fire-control instruments - mobile artillery - USA Voorschrift, Training Regulations, No. 310 Field artillery - USA Voorschrift, Training Regulations, No. 430